div {
    /* border: 1px solid red; */
}

.header{
    background-color: #89FBF4;
}
.header p {
    font-size: 1.2em;
    color: gray;
    margin-left: 90%;
}
.time{
    color: #FFCC00;
    font-size: 2.1em;
}
.body{
    border: 1px solid purple;
}
table {
    float: left;
    width: 12.5%;
    background-color: #F5F5F5;
}
table tr{
    border: 1px solid #DDD;
    height: 30px;
}
table td{
    padding-left: 23%;
}
table>tr>td {
    background-color: yellow;
}
.nav-left{
    border-radius: 0px 30px 10px 0px;
    background-color: #FFFF99;
    opacity: 0.8;
    position: fixed;
    width: 10%;
    height: 40%;
    left: -8%;
    top: 35%;
    transition: 1s;
}
.nav-left:hover {
    left: -2%;
}
.add{
    padding: 1%;
    font-size: 1.1em;
    border-radius: 8px;
    opacity: 0.8;
    overflow: hidden;
    background-color: #FDCAD3;
    position: absolute;
    z-index: +3;
}
.added{
    padding: 1%;
    font-size: 1.1em;
    border-radius: 8px;
    opacity: 0.8;
    overflow: hidden;
    background-color: #FDCAD3;
    position: absolute;
    z-index: +3;
}
.added:hover{
    overflow: visible;
}
.mine{
    background-color: #FDDA81;
}
.nav-content{
    display: block;
    width: 100%;
    height: 33%;
    padding-top: 28%;
}
.cover{
    display: none;
    position: fixed;
    top: 0px;
    left: 0px;
    outline: 5000px solid rgba(0,0,0,0.3);
    z-index: 10;
}